As title, I would find it helpful to have a link look up wrong answers just like you can currently look up words in the sentence. As it stands now, clicking on the wrong answer just takes you to the next question.
Which mode are you playing in? If you’re using Text Input, once you’ve typed in the wrong answer and it has been replaced by the right one, you can retype your original answer into the cloze field and then click on it to bring up the dialog that contains a link to Wiktionary. In this case, the search parameter will be filled with the incorrect answer that you originally gave.
That’s the case on the website, on the Android app, when you write an incorrect answer, the cloze gets marked as wrong, the word corrected to the right answer and there is no possibility to type anything in.
On the multiple answer questions however, at least on my side, I get to press again any of the options, and the wiktionary entry pops up…
I always play on the website, but I tested it on the Android app, and you’re right.